friedkeenan/caseus ? reverse-engineered prompt

Build me an asynchronous Python library for working with Transformice networking.

I want it to handle a big set of packet definitions, plus a client that can connect and talk to the game, a minimal server for testing, and a proxy mode that can sit in between and pass messages through. It should feel like a real networking toolkit for Transformice, so the pieces are easy to use together and the async flow is clean.

If anything about the protocol is unclear, look up current docs online if you need to, and make reasonable choices based on the existing Transformice packet behavior. Keep the code organized, usable, and practical, since I care more about something that works than a perfect academic design.

Also please include a few basic examples or simple tests if that helps show how to use it, because I’d like this to be something I can actually run and build on.